Which characteristics of stem cells make them useful for treating Stargardt's disease?

One company developing a treatment for Stargardt's disease is Astellas (formerly Ocata Therapeutics). This stem cell treatment is designed to protect and regenerate photoreceptors in the retina that are damaged by eye diseases like Stargardt's.

Nitrifying bacterium, plural Nitrifying Bacteria, any of a small group of aerobic bacteria (family Nitrobacteraceae) that use inorganic chemicals as an energy source. They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.